import requests

url = 'https://www.baidu.com'
headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36'
}
# 在请求时带上User-Agent，模拟浏览器请求
response = requests.get(url, headers=headers)
# 获取页面源码
print(response.content.decode("utf-8"))